WEKO3
アイテム
Nematic quantum critical point without magnetism in FeSe1−xSx superconductors
http://hdl.handle.net/2261/61296
http://hdl.handle.net/2261/61296d9b6b6c3-db60-403e-98bf-21f50fb767f3
| 名前 / ファイル | ライセンス | アクション |
|---|---|---|
NematicQCP_PNASrev2.pdf (1.0 MB)
|
|
| Item type | 学術雑誌論文 / Journal Article(1) | |||||
|---|---|---|---|---|---|---|
| 公開日 | 2017-01-06 | |||||
| タイトル | ||||||
| タイトル | Nematic quantum critical point without magnetism in FeSe1−xSx superconductors | |||||
| 言語 | ||||||
| 言語 | eng | |||||
| キーワード | ||||||
| 主題Scheme | Other | |||||
| 主題 | electronic nematicity | |||||
| キーワード | ||||||
| 主題Scheme | Other | |||||
| 主題 | iron-based superconductors | |||||
| キーワード | ||||||
| 主題Scheme | Other | |||||
| 主題 | nematic susceptibility | |||||
| キーワード | ||||||
| 主題Scheme | Other | |||||
| 主題 | unconventional superconductivity | |||||
| 資源タイプ | ||||||
| 資源 | http://purl.org/coar/resource_type/c_6501 | |||||
| タイプ | journal article | |||||
| 著者 |
Hosoi, Suguru
× Hosoi, Suguru× Matsuura, Kohei× Ishida, Kousuke× Wang, Hao× Mizukami, Yuta× Watashige, Tatsuya× Kasahara, Shigeru× Matsuda, Yuji× Shibauchi, Takasada |
|||||
| 著者所属 | ||||||
| 著者所属 | Department of Advanced Materials Science, University of Tokyo | |||||
| 著者所属 | ||||||
| 著者所属 | Department of Physics, Kyoto University | |||||
| 抄録 | ||||||
| 内容記述タイプ | Abstract | |||||
| 内容記述 | In most unconventional superconductors, the importance of antifer- romagnetic fluctuations is widely acknowledged. In addition, cuprate and iron-pnictide high-temperature superconductors often exhibit unidirectional (nematic) electronic correlations, including stripe and orbital orders, whose fluctuations may also play a key role for elec- tron pairing. In these materials, however, such nematic correlations are intertwined with antiferromagnetic or charge orders, preventing us to identify the essential role of nematic fluctuations. This calls for new materials having only nematicity without competing or co- existing orders. Here we report systematic elastoresistance mea- surements in FeSe1−xSx superconductors, which, unlike other iron- based families, exhibit an electronic nematic order without accom- panying antiferromagnetic order. We find that the nematic transition temperature decreases with sulfur content x, whereas the nematic fluctuations are strongly enhanced. Near x 0.17, the nematic sus- ceptibility diverges towards absolute zero, revealing a nematic quan- tum critical point. The obtained phase diagram for the nematic and superconducting states highlights FeSe1−xSx as a unique nonmag- netic system suitable for studying the impact of nematicity on super- conductivity. | |||||
| 内容記述 | ||||||
| 内容記述タイプ | Other | |||||
| 内容記述 | UTokyo Research掲載「新しい種類の超伝導の発生源になりうるか？」 URI: http://www.u-tokyo.ac.jp/ja/utokyo-research/research-news/discovery-may-point-to-new-source-of-superconductivity.html | |||||
| 内容記述 | ||||||
| 内容記述タイプ | Other | |||||
| 内容記述 | UTokyo Research "Discovery may point to new source of superconductivity" URI: http://www.u-tokyo.ac.jp/en/utokyo-research/research-news/discovery-may-point-to-new-source-of-superconductivity.html | |||||
| 書誌情報 |
Proceedings of the National Academy of Sciences of the United States of America Online Edition 発行日 2016-07-05 |
|||||
| ISSN | ||||||
| 収録物識別子タイプ | ISSN | |||||
| 収録物識別子 | 1091-6490 | |||||
| 書誌レコードID | ||||||
| 収録物識別子タイプ | NCID | |||||
| 収録物識別子 | AA11726874 | |||||
| DOI | ||||||
| 識別子タイプ | DOI | |||||
| 関連識別子 | info:doi/10.1073/pnas.1605806113 | |||||
| 権利 | ||||||
| 権利情報 | the author(s) retains copyright to individual articles, and the National Academy of Sciences of the United States of America retains an exclusive license to publish these articles and holds copyright to the collective work. | |||||
| 著者版フラグ | ||||||
| 値 | author | |||||
| 出版者 | ||||||
| 出版者 | National Academy of Sciences | |||||
| 関係URI | ||||||
| 識別子タイプ | URI | |||||
| 関連識別子 | http://www.u-tokyo.ac.jp/ja/utokyo-research/research-news/discovery-may-point-to-new-source-of-superconductivity.html | |||||
| 関係URI | ||||||
| 識別子タイプ | URI | |||||
| 関連識別子 | http://www.u-tokyo.ac.jp/en/utokyo-research/research-news/discovery-may-point-to-new-source-of-superconductivity.html | |||||
| 関係URI | ||||||
| 識別子タイプ | URI | |||||
| 関連識別子 | http://www.pnas.org/cgi/doi/10.1073/pnas.1605806113 | |||||
